Historical development of UTZ (part 2) Flashcards
year the detection of fetal heart movement with doppler UTZ was described
1964
who described the detection of fetal heart movement with doppler UTZ
Callagan
Availability of commercial use UTZ
Mid 60s
Origin of real-time UTZ imaging
late 60s, early 70s
pulsed doppler system was employed
Early 1970s
Ultrasound achieved wide clinical use
1970
Annular array transducers were introduced
mid 1970s
introduced duplex system which links high resolution conventional real time imaging scanner was linked to a pulsed doppler device
Mid 1970s, early 80s
intracavitary mechanical rotating scanner were produced
1980s
doppler UTZ was being developed
1954
the doppler UTZ field work was done by
Kallus
The major limitation of the duplex system in its inability of real time imaging to detect plaque and thrombus was overcome by doppler color flow mapping
late 80s